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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_DELEGATE_H_ | |
6 #define SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_DELEGATE_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "services/service_manager/public/interfaces/interface_provider.mojom.h" | |
11 #include "services/ui/public/interfaces/window_tree.mojom.h" | |
12 | |
13 namespace ui { | |
14 | |
15 class Window; | |
16 class WindowTreeClient; | |
17 | |
18 // Interface implemented by an application using mus. | |
19 class WindowTreeClientDelegate { | |
20 public: | |
21 // Called when the application implementing this interface is embedded at | |
22 // |root|. | |
23 // NOTE: this is only invoked if the WindowTreeClient is created with an | |
24 // InterfaceRequest. | |
25 virtual void OnEmbed(Window* root) = 0; | |
26 | |
27 // Sent when another app is embedded in |root| (one of the roots of the | |
28 // connection). Afer this call |root| is deleted. If the associated | |
29 // WindowTreeClient was created from a WindowTreeClientRequest then | |
30 // OnEmbedRootDestroyed() is called after the window is deleted. | |
31 virtual void OnUnembed(Window* root); | |
32 | |
33 // Called when the embed root has been destroyed on the server side (or | |
34 // another client was embedded in the same window). This is only called if the | |
35 // WindowTreeClient was created from an InterfaceRequest. Generally when this | |
36 // is called the delegate should delete the WindowTreeClient. | |
37 virtual void OnEmbedRootDestroyed(Window* root) = 0; | |
38 | |
39 // Called when the connection to the window server has been lost. After this | |
40 // call the windows are still valid, and you can still do things, but they | |
41 // have no real effect. Generally when this is called clients should delete | |
42 // the corresponding WindowTreeClient. | |
43 virtual void OnLostConnection(WindowTreeClient* client) = 0; | |
44 | |
45 // Called when the WindowTreeClient receives an input event observed via | |
46 // StartPointerWatcher(). |target| may be null for events that were sent to | |
47 // windows owned by other processes. | |
48 virtual void OnPointerEventObserved(const ui::PointerEvent& event, | |
49 Window* target) = 0; | |
50 | |
51 protected: | |
52 virtual ~WindowTreeClientDelegate() {} | |
53 }; | |
54 | |
55 } // namespace ui | |
56 | |
57 #endif // SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_DELEGATE_H_ | |
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